Advantages
• Ultrasonic technology is inherently non-contact and is therefore impervious to challenging application factors that can negatively impact level sensor performance such as corrosive & ultrapure liquids, coating, scaling, dirt, Δ density, dielectric or conductivity.
Limitations
• The factors to avoid with ultrasonic are extreme foam, vapor, turbulence and installations in flange fittings with tall risers. Foam, vapor and turbulence can absorb and/or deflect away a substantial portion of the return signal. Tall installation fittings can disrupt the acoustic signal path.